#ifndef __KEY_H__
#define __KEY_H__

#define KEY_ONE 9
#define KEY_TWO 10
#define KEY_THREE 11
#define KEY_FOUR 5
#define KEY_FIVE 6
#define KEY_SIX 7
#define KEY_SEVEN 1
#define KEY_EIGHT 2
#define KEY_NINE 3
#define KEY_ZERO 14
#define KEY_ADD 16
#define KEY_SUB 12
#define KEY_MUL 8
#define KEY_DIV 4
#define KEY_EQU 15
#define KEY_ON 13


unsigned char get_key(void);



#endif
